Finding the Third Proportional to 140,799 and 219,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,799 : 219,838.50 = 219,838.50 : x
2. Step 2: Convert to fraction form
   140,799/219,838.50 = 219,838.50/x
3. Step 3: Cross multiply
   140,799x = 219,838.50 × 219,838.50
4. Step 4: Simplify right side
   140,799x = 48,328,966,082.25
5. Step 5: Solve for x
   x = 48,328,966,082.25/140,799
6. Step 6: Final answer
   x = 343,247.94